MSP is useful when your aircraft is with any Tom, Dick and Harry operator as it will give you economy of scale and the manufacturer looks more closely at your maintenance. In return you pay a hefty "insurance" premium to the OEM to cover your butt and it looks good in the aftermarket.
Netjets has economy of scale, OEM reps on site and sells the aircraft with fresh engines at the end so what is the point of MSP? As long as the buyer knows the engine is maintained to MSP standards and they can enter it into MSP as soon as they buy it there is no value issue.